... ABSTRACT A coupling hydrodynamic model of SWATH and reef topography was established based on the conventional potential flow theory and the incident wave force, diffraction force, radiation hydrodynamic coefficients motions of SWATH were calculated. The model was compared with the same SWATH...

... Abstract In this paper, the air lubrication drag reduction is applied to the highspeed SWATH (small water area twin hull), and the effect of injection position on the drag reduction and wetted surface area reduction is studied. Before the numerical simulation, the convergence...

... on Influence of Vertical Towed Array on Seakeeping Performance of a SWATH Vessel in Frequency Domain Xiaoshuai Sun1, Chaobang Yao2, * 1 China Marine Development and Research Center, Beijing, China 2 School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan, China...

... ABSTRACT In this paper, the manoeuvrability of SWATH is studied by using CFD method. Numerical simulation of viscous flow around SWATHs with different demi-hull spacing undergoing pure sway/yaw motions are conducted by solving the three-dimensional incompressible RANS equations. From...

... ABSTRACT The SWATH (Small Waterplane Area Twin Hull) has good reputation for its excellent performance. Due to the complexity of its structure as well as working load, the ultimate load-carrying capacity is extremely concerned by the researchers. In order to investigate the collapse...

... ABSTRACT An unconventional SWATH vehicle with inclined struts is proposed and the influence of submergence depth on its resistance in calm water is investigated by numerical and experimental method. At different submergence depth, resistance performance of a torpedo hull, which is based...

... for viscous effects due to eddy making, hull friction and foil damping (if present). Validation of the proposed method in the case of a catamaran and a Small Waterplane Area Twin Hull (SWATH) is presented. Finally, a systematic comparison of the predicted roll responses of the two equivalent multihull designs...

... Abstract The research on ultimate strength of SWATH under combined loads is important to ensure its safety. In the present research, nonlinear finite element method is adopted to investigate progressive collapse behaviour of a SWATH model under transverse bending moment, longitudinal torsional...

... Abstract Two-dimension numerical simulations are carried out to study the hydrodynamic performance of the SWATH hull sections with inclined struts and vertical ones damping in restricted water based on viscous flow theory, solving the Reynolds-averaged Navier-Stokes equations (or RANS...

... ship types, such as catamarans and SWATHs, the higher computational speed of these methods does not justify their inherent lack of accuracy. The paper aims to demonstrate this through a series of application examples of a new numerical method based on the unsteady solution of the Navier-Stokes...

... ABSTRACT: The geometrical parameters such as hull spacing and draft could be highly related with the drag of a moving Small Waterplane Area Twin Hull (SWATH). In order to show the correlations between the parameters and the hull drag, parameter design methods have been collaborated...

... Optimized SWATH Form Design with High Speed and Seakeeping Performance Tieli Li, Yan Lin, Zhoushang Ji Department of Naval Architecture, Dalian University of Technology Dalian, China ABSTRACT Combined with the latest research progresses overseas and based on the new shipform requirements...

... with ship equipment (Multibeam Echo Sounder and streamers). synthetic aperture sonar installation operation towed body frequency upstream oil & gas resolution coverage rate architecture bathymetry reservoir characterization side-scan sonar towed fish swath imagery sonar sub...

... (SMART) on "Kaiyo" K. Wada Japan Marine Science and Technology Center, Yokosuka, Japan ll. Yagi Mitsui Engineering & Shipbuilding Co., Ltd., Tokyo, Japan J. Takashzna Akishima Laboratories (Mitsui Zosen) Inc., Akishima, Japan ABSTRACT The Kaiyo was constructed as the first and the largest SWATH...

... for this application, it is an extension of existing SWATH technology. In fact, it is an order of magnitude larger than any existing SWATH. This preliminary design illustrates the general arrangements and, as further development on a previously published concept design, further refines the vessel characteristics...